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// IndexerValueReference.cs
//
// Author:
// Lluis Sanchez Gual <lluis@novell.com>
//
// Copyright (c) 2008 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
//
using System;
using System.Reflection;
using Mono.Debugger;
using Mono.Debugger.Languages;
using Mono.Debugging.Client;
using System.Collections.Generic;
using Mono.Debugging.Evaluation;
using System.Text;
namespace DebuggerServer
{
public class IndexerValueReference: ValueReference
{
TargetPropertyInfo indexer;
TargetStructObject target;
TargetObject[] index;
public IndexerValueReference (EvaluationContext ctx, TargetStructObject target, TargetObject[] index, TargetPropertyInfo indexerProp): base (ctx)
{
this.indexer = indexerProp;
this.target = target;
this.index = index;
}
public static ValueReference CreateIndexerValueReference (MdbEvaluationContext ctx, TargetObject target, TargetObject[] index)
{
TargetFundamentalObject mstr = target as TargetFundamentalObject;
if (mstr != null && mstr.TypeName == "string") {
// Special case for strings
string name = "[" + ctx.Evaluator.TargetObjectToExpression (ctx, index[0]) + "]";
string val = (string) mstr.GetObject (ctx.Thread);
object oo = ctx.Adapter.TargetObjectToObject (ctx, index[0]);
int idx = (int) Convert.ChangeType (oo, typeof(int));
return LiteralValueReference.CreateObjectLiteral (ctx, name, val [idx]);
}
TargetStructObject sob = target as TargetStructObject;
if (sob == null)
return null;
TargetPropertyInfo indexerProp = null;
foreach (MemberReference mem in ObjectUtil.GetTypeMembers (ctx, target.Type, false, true, true, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static)) {
if (mem.Member.IsStatic)
continue;
if (mem.Member is TargetPropertyInfo) {
TargetPropertyInfo prop = (TargetPropertyInfo) mem.Member;
if (prop.CanRead && prop.Getter.ParameterTypes.Length == 1) {
indexerProp = prop;
break;
}
}
}
if (indexerProp != null)
return new IndexerValueReference (ctx, sob, index, indexerProp);
else
return null;
}
public override object Value {
get {
MdbEvaluationContext ctx = (MdbEvaluationContext) Context;
return ObjectUtil.GetRealObject (ctx, Server.Instance.RuntimeInvoke (ctx, indexer.Getter, target, index));
}
set {
MdbEvaluationContext ctx = (MdbEvaluationContext) Context;
TargetObject[] cparams = new TargetObject [index.Length + 1];
for (int n=0; n<index.Length; n++)
cparams[n] = TargetObjectConvert.Cast (ctx, index[n], indexer.Setter.ParameterTypes [n]);
cparams [cparams.Length - 1] = TargetObjectConvert.Cast (ctx, (TargetObject) value, indexer.Setter.ParameterTypes [cparams.Length - 1]);
Server.Instance.RuntimeInvoke (ctx, indexer.Setter, target, cparams);
}
}
protected override bool CanEvaluate (EvaluationOptions options)
{
return options.AllowTargetInvoke;
}
public override object Type {
get {
if (indexer.CanRead)
return indexer.Getter.ReturnType;
else
return indexer.Setter.ParameterTypes [1];
}
}
public override string Name {
get {
StringBuilder sb = new StringBuilder ("[");
for (int n=0; n<index.Length; n++) {
if (n > 0)
sb.Append (',');
sb.Append (Server.Instance.Evaluator.TargetObjectToExpression (Context, index[n]));
}
sb.Append (']');
return sb.ToString ();
}
}
public override ObjectValueFlags Flags {
get {
if (!indexer.CanWrite)
return ObjectValueFlags.ArrayElement | ObjectValueFlags.ReadOnly;
else
return ObjectValueFlags.ArrayElement;
}
}
}
}
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